Decorative light bulb



FIG. 1 is a front perspective view of a decorative light bulb, according to one preferred embodiment of this invention;

FIG. 2 is a front view of the decorative light bulb, as shown in FIG. 1;

FIG. 3 is a top view of the decorative light bulb, as shown in FIG. 1;

FIG. 4 is a back view of the decorative light bulb, as shown in FIG. 1;

FIG. 5 is a side view of the decorative light bulb, as shown in FIG. 1; and,

FIG. 6 is a side view of the decorative light bulb, opposite the side view of FIG. 5, as shown in FIG. 1. 

The ornamental design for a decorative light bulb, as shown and described. 